Not sure if anybody is paying attention to this but...
I helped a guy swap an EJ22 for en EJ18 and have a chance to take his EJ18 heads for free.
I am thinking of swapping the EJ18 heads onto my EJ22 block and maybe getting the cams ground by Delta. This would be a lot easier and cheaper than a turbo build. It would also pass a smog test (I think).
I would probably try a little port/polish work on the heads as well. Not sure if I would change the exhaust at all. I would maybe change out catback for the spintech sitting in my garage and clean up the stock headers a little bit.
I just need to look into what headgaskets to use and what CR I will end up with.